Since an app on a mobile device is needed to setup the Tempest, that device most likely has access to the internet, too. Just open the map app, make sure it is displaying the satellite view with true North ser at the top, slide the map until the Tempest mounting point is on one edge or the other of the screen and then look for a land mark to use to aim the Tempest. It takes less than 30 seconds to do this and once it is set, you won’t need to mess with it. I’ve used this on multiple occasions when I go camping and take my mobile station with me. It is fast, accurate, and simple and does not require anything added to the Tempest system.